apt-get install bind9

when I try to install bind9 using the perfect setup for debian etch using the above I get the following error:

~# apt-get install bind9
Reading package lists... Done
Building dependency tree... Done
Package bind9 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
dnsutils
E: Package bind9 has no installation candidate

I have tried to use the /etc/apt/source.list as in the perfect setup and the original one that came on the vds.
I have installed everything else from the perfect setup.